PROMPT='''
Q:Amy has $$37$$ apples and John has $$15$$ apples. How many apples does Amy have to give John so that she has exactly $$4$$ more apples than John?

P:
Let's denote the number of apples Amy gives to John as "x". To solve the problem, we need to set up an equation based on the given information and solve for "x". Here's the thinking process:
Start with the number of apples Amy has, which is 37.
Subtract "x" (the number of apples Amy gives to John), as she gives those to John.
After giving away the apples, Amy will have 37 - x apples left.
John initially has 15 apples.
After receiving "x" apples from Amy, John will have 15 + x apples.
Amy wants to have exactly 4 more apples than John. Setting up the equation:
    37 - x = 15 + x + 4
Simplifying the equation:
    37 - x = 19 + x
To isolate "x", we can add "x" to both sides of the equation:
    37 = 19 + 2x
Next, subtract 19 from both sides of the equation: 
    37 - 19 = 19 - 19 + 2x
    18 = 2x
Finally, divide both sides of the equation by 2 to solve for "x":
    18/2 = 2x/2; 9 = x
Therefore, Amy needs to give John 9 apples for her to have exactly 4 more apples than him.

A:9
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